| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so why [not/n't] [verb] it | 14 |
|
| 2 | so why not [verb] it | 14 |
|
| 3 | so why [not/n't] [verb] it | 14 |
|
| 4 | so why [not/n't] [vb infin] it | 13 |
|
